<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model.trim="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- table表格区域 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格(元)"
          prop="goods_price"
          width="95px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="70px"
        ></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <!-- 编辑按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="editHandle(scope.row)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
    <!-- 修改商品对话框 -->
    <el-dialog
      title="修改商品"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="handleEditClose"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="100px"
      >
        <el-form-item label="商品名称" prop="goods_name">
          <el-input v-model="editForm.goods_name"></el-input>
        </el-form-item>
        <el-form-item label="价格" prop="goods_price">
          <el-input v-model="editForm.goods_price"></el-input>
        </el-form-item>
        <el-form-item label="数量" prop="goods_number">
          <el-input v-model="editForm.goods_number"></el-input>
        </el-form-item>
        <el-form-item label="重量" prop="goods_weight">
          <el-input v-model="editForm.goods_weight"></el-input>
        </el-form-item>
        <el-form-item label="介绍" prop="goods_introduce">
          <el-input v-model="editForm.goods_introduce"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editConfirm">确 定</el-button>
      </span>
    </el-dialog>
    <router-view></router-view>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10,
      },
      // 保存商品列表数据
      goodslist: [],
      // 总数据条数
      total: 0,
      //保存编辑商品的查询数据
      editForm: {},
      //编辑商品对话框显示
      editDialogVisible: false,
      //编辑商品表单验证规则
      editFormRules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' },
        ],
        goods_price: [
          { required: true, message: '请输入商品价格', trigger: 'blur' },
        ],
        goods_weight: [
          { required: true, message: '请输入商品重量', trigger: 'blur' },
        ],
        goods_number: [
          { required: true, message: '请输入商品数量', trigger: 'blur' },
        ],
        goods_cat: [
          { required: true, message: '请选择商品分类', trigger: 'blur' },
        ],
      },
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })

      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }

      // this.$message.success('获取商品列表成功！')
      // console.log(res.data)
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    //分页组件处理函数
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    //编辑商品按钮处理，
    async editHandle(rowData) {
      const { data: res } = await this.$http('goods/' + rowData.goods_id)
      console.log(res.data)
      this.editForm = res.data

      this.editDialogVisible = true
    },
    //修改商品对话框关闭，重置表单
    handleEditClose() {
      this.$refs.editFormRef.resetFields()
    },
    //确认修改按钮
    editConfirm() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        //这里用const定义也行，引用型数据
        //注意arr 定义到forEach块作用域外部，否则每次循环arr都只有一组数据
        const arr = []
        this.editForm.attrs.forEach((item) => {
          const obj = { attr_id: item.attr_id, attr_value: item.attr_vals }
          arr.push(obj)
          this.editForm.attrs = arr
        })
        // console.log(this.editForm.attrs)
        //貌似查询响应数据中没有图片的暂存地址tem_...
        const arr1 = []
        this.editForm.pics.forEach((item) => {
          const obj1 = { pic: item.pics_sma_url }
          arr1.push(obj1)
          this.editForm.pics = arr1
        })
        // console.log(this.editForm.pics)
        // console.log(this.editForm)
        // const { data: res } = await this.$http.put(
        //   `goods/${this.editForm.goods_id}`,
        //   this.editForm
        // )
        // if (res.meta.stauts !== 201) {
        //   return this.$message.error('修改商品失败！')
        // }
        // this.$message.success('修改商品成功！')
        // this.getGoodsList()
        this.$message.success(
          '修改商品的后台接口是不是有问题，还是我哪里错了？？？'
        )
        this.editDialogVisible = false
      })
    },
    //删除商品按钮
    async removeById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)

      if (confirmResult !== 'confirm') {
        return this.$message.info('取消删除！')
      }

      const { data: res } = await this.$http.delete(`goods/${id}`)

      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }

      this.$message.success('删除成功！')
      this.getGoodsList()
    },
    //添加商品按钮，跳转路由
    goAddPage() {
      this.$router.push({ path: '/goods/add' })
    },
  },
}
</script>

<style lang="less" scoped>
</style>